The Open Renewable Energy Journal

2009, 2 : 70-78
Published online 2009 May 13. DOI: 10.2174/1876387100902010070
Publisher ID: TOREJ-2-70

Fuzzy Logic Operation Control for PV-Diesel-Battery Hybrid Energy System

Abd El-Shafy A. Nafeh
Electronics Research Institute, Cairo, Egypt.

ABSTRACT

In this paper an operational control technique, based on using the fuzzy logic controller (FLC), is developed and applied to a proposed Photovoltaic-Diesel-Battery (PVDB) hybrid system. The proposed scheme is modeled and simulated using MATLAB-SIMULINK and FUZZY toolbox. The FLC is designed, to work simultaneously with the commonly used ON-OFF controller, for optimizing the operation of the PVDB system under different insolations. Where, the proposed system becomes able to reliably satisfy the system’s load and, also, to optimize the battery and diesel operation at all working conditions. The results indicated the high capability of the FLC in controlling the system.

Keywords:

PVDB hybrid system, Fuzzy logic control, MATLAB-SIM.